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Solids, liquids, and gases : from ice cubes to bubbles /
by Ballard, Carol.
Publication:
Chicago, Ill. : Heinemann Library, 2004
. 32 p. :
, Heinemann infosearch
25 cm.
Date:2004
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Grouping materials /
by Ballard, Carol.
Publication:
Chicago, Ill. : Heinemann Library, 2003
. 32 p. :
, Heinemann infosearch
25 cm.
Date:2003
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(1),
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How we use soil /
by Ballard, Carol.
Publication:
Chicago, Ill. : Raintree, 2005
. 32 p. :
28 cm.
Date:2005
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(1),
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